Home / 19,990.42-27,587.86-11,037.89

Finding the Fourth Proportional to 19,990.42, 27,587.86 and 11,037.89

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Solution

The fourth proportional to 19,990.42, 27,587.86 and 11,037.89 is: 15,232.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.42 : 27,587.86 = 11,037.89 : x
  2. Step 2: Convert to fraction form
    19,990.42/27,587.86 = 11,037.89/x
  3. Step 3: Cross multiply
    19,990.42x = 27,587.86 × 11,037.89
  4. Step 4: Simplify right side
    19,990.42x = 304,511,805.39
  5. Step 5: Solve for x
    x = 304,511,805.39/19,990.42
  6. Step 6: Final answer
    x = 15,232.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.